Koyorad A2831 Radiator

Koyorad A2831 Radiator Overview

The Koyorad A2831 radiator is an OE-equivalent replacement built for cooling-system service on select Hyundai and Kia applications. It uses an aluminum core with plastic tanks and includes an internal transmission oil cooler for vehicles equipped with automatic transmission cooling.

Compatible With 2006-2011 Hyundai Azera, 2006-2010 Hyundai Sonata, and 2007-2010 Kia Optima, this radiator is built around the factory-style dimensions and connection sizes needed for a direct-fit repair. The Koyorad A2831 is a practical choice when replacing a leaking, clogged, or damaged radiator.

Key Features

• OE-equivalent radiator replacement from Koyorad
• Aluminum core with plastic tank construction
• Single-row core design
• Core dimensions: 25.0625 in. height, 19.8125 in. width, 0.625 in. thickness
• Inlet and outlet diameter: 1.375 in.
• Internal transmission oil cooler included
• Transmission oil cooler diameter: 1 in.

Detailed Product Description

Koyorad A2831 is engineered as a direct replacement radiator for the Hyundai Azera, Hyundai Sonata, and Kia Optima within the listed model years. The aluminum core supports efficient heat transfer, while the plastic tanks match common OE-style radiator construction used in many factory cooling systems. With the internal transmission oil cooler included, this radiator addresses both engine coolant circulation and automatic transmission fluid cooling in one assembly.

For buyers searching for a 2006-2011 Hyundai Azera radiator, a 2006-2010 Hyundai Sonata radiator, or a 2007-2010 Kia Optima radiator, part number A2831 provides a fitment-specific solution. Koyorad builds replacement radiators with the technical experience needed to meet OE-style requirements for the listed applications.

What This Radiator Helps Address

• Coolant leaks from a cracked or corroded radiator
• Overheating caused by restricted coolant flow
• Transmission fluid temperature control issues in equipped vehicles
• Damaged inlet or outlet connections
• Cooling-system failure after age-related tank or core wear

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler connection requirements before installation. This radiator is listed with an internal transmission oil cooler, so confirm your vehicle uses the same cooling setup. Flush the cooling system, inspect hoses and clamps, and replace worn seals or related components during service to help complete the repair correctly.

Quality Assurance

Koyorad positions this radiator as an OE-equivalent replacement and uses manufacturing experience focused on accurate fit and function for the listed Hyundai and Kia applications. Part number A2831 is built to match the specified cooling-system requirements for direct replacement service.